William Optics SWAN is a well-designed, wide-angle eyepiece with large lenses for small amounts of money. Own field of view of the eyepiece (AFOV) equal to 72 °. The optics are fully covered with good anti-reflective layers.

The most important features

• own field of view equal to 72 ° • all glass - air boundaries covered with very good layers • extraordinary correction of chromatic aberration • sharpness and good contrast • parfocal with glasses from the series • the whole interior of the eyepiece well blackened (baffle, the edges of the lens) • anodized black body, mechanically resistant • equipped with a filter thread